Crochet is notorious for using lots of yarn. Single crochet is the smallest stitch, not counting the slip stitch. I would think that all other stitches would use more yarn.

My first pup, a terrier, paid no attention to Bitter Apple spray (there might be Bitter Lime out there, but the apple is what my local pet store had). She still chewed -- a hard plastic piece from a rolling cart and the windowsill in the kitchen, where she was gated when I was at work and before/after the dogwalker came for her. Unless you can be with him 24/7 and do intense training, he needs to be confined in a crate or in one of the fenced play yards, like a playpen. Along with the teething symptoms, the dog's feeling out his teeth and what he can do with them. My 2nd pup, also a terrier, felt out her teeth on my toes. Thankfully she's gotten over that. Only took her about a year or so. But sometimes I see her heading toward me with a crazy look in her eyes!

I think you need to forget the yellow, except for small bits of accent color, and use red in the LR to make it congruent with the open dining room. Is the brown sofa a given? If you could slipcover that with the red and white pattern from the DR it would brighten up your room tremendously. Then do the Martha Washington chairs in a red and blue stripe. I would lose the yellow lamp as it looks confusing in your pictures. The more I look at the pictures, the more it looks like the brown sofa is a heavy weight in the room that can't be "lifted" with cheery throw pillows that have no relation whatsoever to the sofa. I would also either use four of the prints, stacked two and two, or get something much bigger. I am not a big fan of large mirrors in living rooms, especially when one has the light and windows you have--- I'd much rather have something to actually look at, instead of in. Would also replace the rug. The size is fine, but the beige does seem lifeless compared to the beautiful blue you have on the walls. A nice blue and red oriental rug would be perfect. Curtains would not be a must, but whatever you do I'd use the same treatment at the dining room window. IMO you need to treat the two areas essentially as one big room, style and color wise.

Notepad, I thought you explained it pretty well. I don't think you need anything more than your table and buffet. As for space, take a roll of painter's tape, tape off the dimensions of the table, allowing about 3- 4 feet around the perimeter for the chairs, then see if there would be room for a buffet, and if so, where would it best fit.